p. 1 January 15, 2009 DuPont Haskell Global Centers for Health and Environmental Sciences 1090 Elkton Road, P.O .

"McCrea, Deborah" <mccrea@taftlaw.com> 10/28/2009 02 :00 PM To NCIC OPPT@EPA cc Bilott, Robert A."

ILSI RESEARCH FOUNDATION International Life Sciences Institute Document Processing Center (Mail Code 7407M), Room 6428 Office of Pollution Prevention and Toxics U.S.

3M GLP10-01-02; Interim Report 11 Analysis o f PFBS, PFHS, and PFOS In Groundwater Former Sludge Incorporation Area - November 2010 GLP10-01-02: Interim Report 11 - Analysis o f PFBS.

Corporate Health Physics Corporate Occupational Medicine Corporate Product Responsibility Corporate Toxicology 3M Medical Department 3M Center, 220-2E-02 PO Box 33220 St.

Corporate Health Physics Corporate Industrial Hygiene & Ergonomics Corporate Occupational Medicine Corporate Toxicology 3M Medical Department 3M Center, Building 220-2E-02 PO Box 33220 ' St.

THE DEVELOPMENT SERVICES COMPANY Sponsor: 3M St.

02/28/2001 ENVIRONMENTAL LABORATORY ARCHIVED FINAL REPORT B A C K T O MAIN LAB REQUEST NO. 8442 REQUESTOR NAME: EAR DEPARTMENT: 0535 PROJECT NO: 9970012600 DATE RECEIVED: 09/07/1982 DESC: ENVIRONMENTAL SCREEN ON L-6778 CONTRACT LAB(S): EXP COMP DATE: 11/12/1982 DATE COMPLETED: 11/09/1982 PROJECT LEAD: PHONE NO: 3M FAX NO: 651-778-6176 EVAPORATE TO DRYNESS UNDER AIR OR N2.

BACK TO MAIN DESIGN AND STRUCTURE OF MULTI-CITY STUDY submitted to 3M Environmental Laboratory 935 Bush Avenue St.

< Larry R.

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Attachments to Letter to C.

bb^So \ An zn4 _ \0i4a DuPont Product Stewardship Update United States Environmental Protection Agency 17 December 2001 R.

j O XM A - 6 - / 4 Final Summary Report Study Title E xtended R ecovery Study Follow ing a 2 6 -W e e k C ap sule Toxicity Study with P erfluorooctane Sulfonic Acid Potassium S a lt (P F O S ; T -6 2 9 5 ) in Cynom oigus Monkeys A u th o r P eter J.

AfiASlG - iS'Ol DOihviiiosniEonPtAoefrA-iroPofllfuiticoneCocntoroml munication to: from: subject: date : Chris Jones Bob Hodanbosi, DAPC October 29, 2002 letter DuPont, West Virginia C8 December 3, 2002 We are preparing a letter for your signature in response to several et-letters written by Attorney Robert A Bilott (Taft, (Stettinus & Hollister LLP) on behalf of Ohio citizens impacted by air emissions of C8 from the DuPont facility located in West Virginia.